What exactly do you need? For boys or for girls? There are many free online games for kids on https://www.skywardgames.com/ including educational. You can choose from many categories or launch some popular game like Talking Tom immediately.
Actually this website offers a wide selection of games for kids at different tastes and for all ages. My kids play games there without downloading, but I certainly I limit their time playing, cause if I allowed, they could play in a blue moon